How to protect cast iron in diesel engine cooling systems?

How to protect cast iron in diesel engine cooling systems, By using RXSOL 2000 Antiscalant Corrosion Inhibitor?
In cases where systems are contaminated with oil and/or scale they should be cleaned before starting to apply RXSOL 2000 .There are suitable RXSOL BRAND products to carry out the cleaning. Degreasing should be carried out using RXSOL 2000 and descaling by using RXSOL 2000.

SPECIFICATION / HANDLING
Color                           : Odour Pink/ red (Colour changes of the product can not be excluded the effectively will however not impaired.)
Sp. Gravity                  : 1.1 to 1.25
pH                                : Alkaline (11.3 – 11.5)

RXSOL-2000 is an alkaline product & should be handled like other chemical Avoid contact with Eyes, Skin ,in case of contact ,wash with copious amounts of water immediately.
Freezing Point - 17 0 c
Nitrite (as PPM NO2)       0                   100-200      300-600        700-900      1100-1300      1440-2400
RXSOL 2000 /1000L      13.0               11.3              8-10               5-7               1.5-3.5              0

METHOD OF USE
1. Properly clean the system with water and alkaline liquid, if necessary.
2. Add 0 .15-1.5 % of Rxsol -2000 in system or recommended Nitrite level 1400 – 2500 ppm can be measured and controlled by any standard RXSOL test kit for Nitrite, Chloride test also helps to detect excess contamination to maintain accepted levels . When the product is dosed as recommended limit By buffering action of RXSOL - 2000 , pH should be maintained between 8.3 and 10 by the treatment.

NOTE ::: Engine cooling system should be drained, flushed and if necessary chemically cleaned with (Aluminum & Metal Cleaner) for to remove old rust and scale deposits, before treatment with RXSOL 2000.